The patch titled
Subject: mm/filemap.c: enable error injection at add_to_page_cache()
has been added to the -mm tree. Its filename is
mm-enable-error-injection-at-add_to_page_cache.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-enable-error-injection-at-add_to_page_cache.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-enable-error-injection-at-add_to_page_cache.patch
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------------------------------------------------------
From: Josef Bacik <josef@xxxxxxxxxxxxxx>
Subject: mm/filemap.c: enable error injection at add_to_page_cache()
Recently I messed up the error handling in filemap_fault() because of an
unexpected ENOMEM (related to cgroup memory limits) in add_to_page_cache.
Enable error injection at this point so I can add a testcase to xfstests
to verify I don't mess this up again.
Link: http://lkml.kernel.org/r/20190403152604.14008-1-josef@xxxxxxxxxxxxxx
Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx>
Reviewed-by: William Kucharski <william.kucharski@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/filemap.c | 1 +
1 file changed, 1 insertion(+)
--- a/mm/filemap.c~mm-enable-error-injection-at-add_to_page_cache
+++ a/mm/filemap.c
@@ -882,6 +882,7 @@ error:
put_page(page);
return xas_error(&xas);
}
+ALLOW_ERROR_INJECTION(__add_to_page_cache_locked, ERRNO);
/**
* add_to_page_cache_locked - add a locked page to the pagecache
_
Patches currently in -mm which might be from josef@xxxxxxxxxxxxxx are
mm-enable-error-injection-at-add_to_page_cache.patch
